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Topic Question Set

Q 1 :    

Arrange the following in the ascending order of wavelength:

A. Gamma rays (λ1)

B. x-rays (λ2)

C. Infrared waves (λ3)

D. Microwaves (λ4)

Choose the most appropriate answer from the options given below         [2024]

  • λ4<λ3<λ1<λ2

     

  • λ2<λ1<λ4<λ3

     

  • λ4<λ3<λ2<λ1

     

  • λ1<λ2<λ3<λ4

     

(D)      Order of wavelength

           gamma rays < x-rays < infrared < microwaves

          ⇒λ1<λ2<λ3<λ4

 

Q 2 :    

Match List-I with List-II:

 

List-I

(EM-Wave)

  

List-II

(Wavelength Range)
A Infra-red (I) 10-3nm
B Ultraviolet (II) 400 nm to 1 nm
C X-rays (III) 1 mm to 700 nm
D Gamma rays (IV) 1 nm to 10-3 nm

 

Choose the correct answer from the options give below                 [2024]

  • (A)-(I), (B)-(III), (C)-(II), (D)-(IV)

     

  • (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

     

  • (A)-(III), (B)-(II), (C)-(IV), (D)-(I)

     

  • (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

     

(C)         Infrared is the least energetic thus having biggest wavelength (λ) and gamma rays are most energetic thus having smallest wave length (λ).